Remove unused image

Author: mihaelablendea

samples/features/sql-big-data-cluster/deployment/offline/push-bdc-images-to-custom-private-repo.py

@@ -44,7 +44,6 @@ def execute_cmd (cmd):
            'mssql-security-domainctl'
            'mssql-security-knox'
            'mssql-security-support'
-           'mssql-server'
            'mssql-server-controller'
            'mssql-server-data'
            'mssql-ha-operator'